<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>Document</title>
        <script src="./Promise.js"></script>
    </head>
    <body>
        <script>
            let p = new Promise((resolve, reject) => {
                resolve('ok');
            });
            
            //值传递
            p
            .then(v=>{
                console.log(111);
                return new Promise(() => {})
            })
            .then(v => {
                console.log(222);
            })
            .then(v => {
                console.log(333);
            }) 

           
            

            
        </script>
    </body>
</html>
